Lubricant



UNITED STATES ATENT Erica HIRAM HURTY, OF ELMIRA, NEW YORK.

LUBRlGANT.

SPECIFICATION forming part of Letters Patent No. 237,437, dated February 8, 1881. Application filed April 1'7, 1880. (No specimens.)

To all whom it may concern: to red-hot car-axle journals it will cool them 20 Be it known that I, IIIRAM IIUR'LY, of Eldown to the proper point without stopping mira, in the county of Ghernung and State of the running of the train longer than to apply New York, have invented anew and Improved it, thus rendering unnecessary the use of wa- Lubricant; and I do hereby declare the folter or other injurious cooling agents, and savlowing to be a full, clear, and exact descriping' a great deal of time. 25 tion of thesaine, which will enable any perhe lubricant may be used. in connection son skilled in the art to which the invention with oil in some cases; but the oil is by no appertains, or with which it is most closely means an essential ingredient.

connected, to make and use the same. I claim as my invention- My invention consists of a lubricant com- The lubricant herein described, composed o posed of plumbago and common salt, in about of plumbago and common salt in about equal equal proportions, finely pulverized and thorproportions, finely pulverized and mixed tooughly mixed together. gether, substantially as set forth.

This lubricant has been practically used for v the lubrication of various kinds of machinery HIRAM HURTS with the most satisfactory results. Its opera- \Vitnesses: tion is to greatly reduce the friction of bear- L. HILL, ings and to keep them cool. When applied M. CHURCH. 

